The ST7570 is a powerful power line networking system-on-chip. It combines a fully integrated narrow-band power line networking system-on-chip with a high-performing PHY processor and embedded turn-key firmware for spread-frequency shift keying (S-FSK) modulation. It supports programmable bit rate and carriers, signal to noise ratio estimation, received signal strength indication, and protocol engine embedding. The chip also features on chip peripherals like UART interface, fully integrated analog front end with ADC, DAC, and PGA, as well as a single-ended power amplifier. It is suitable for smart metering applications, street lighting control, and command and control networking.
The ST7570 is a powerful power line networking system-on-chip designed for smart metering, street lighting control, and command and control networking. It combines a high-performance PHY processor core with a protocol controller core and a fully integrated analog front end (AFE) to provide a cost-effective single-chip solution based on the IEC61334-5-1 S-FSK standard.
The device features a programmable bit rate up to 2.4 Kbps, signal-to-noise ratio estimation, and received signal strength indication. The fully integrated analog front end includes an ADC, DAC, PGA with automatic gain control, and a high linearity modulated signal generator. It also incorporates a single-ended power amplifier capable of delivering up to 1 A rms output current.
| Programmable bit rate | up to 2.4 Kbps (@ 50 Hz) |
|---|---|
| Carrier frequency range | 1 Hz step programmable carriers up to 148.5 kHz |
| Power amplifier output current (rms) | Up to 1 A rms |
| Operating ambient temperature | -40 °C to +85 °C |
| Power supply voltage (VCC) | 8 V to 18 V |
| Digital I/O supply voltage (VDDIO) | 3.3 V or 5 V |
| Power amplifier output 2nd harmonic distortion | -71 dBc (at 13V) |
| Power supply rejection ratio (50 Hz) | 100 dB |
The programmable bit rate can reach up to 2.4 Kbps at a 50 Hz frequency.
The fully integrated single-ended power amplifier delivers up to 1 A rms.
It is suitable for EN50065 and FCC part 15 compliant applications based on IEC61334-5-1.
The device operates within a temperature range of -40 °C to +85 °C.